Optimize Socket Reconnect

[dsrees]

• Use a more aggressive reconnect algorithm
• decouple socket reconnect algorithm with channel rejoin, socket side. Channel changes next
• Fix socket never reconnecting after a heartbeat times out
• Updated WebSocketTransport to call onClose after an onError event

[codecov-io]

Codecov Report

Merging #61 into master will increase coverage by 0.01%.
The diff coverage is 82.6%.

@@ Coverage Diff @@## master #61 +/- ##
============================================
+ Coverage 91.22% 91.23% +0.01% - Complexity 174 179 +5 
============================================
Files 9 9 Lines 513 525 +12 Branches 66 69 +3 ============================================
+ Hits 468 479 +11 - Misses 13 14 +1 
Partials 32 32

Impacted Files	Coverage Δ	Complexity Δ
src/main/kotlin/org/phoenixframework/Transport.kt	83.33% <100%> (-0.67%)	0 <0> (ø)
src/main/kotlin/org/phoenixframework/Defaults.kt	90.9% <80%> (-9.1%)	5 <2> (+2)
src/main/kotlin/org/phoenixframework/Socket.kt	91.97% <82.35%> (-0.19%)	70 <5> (+2)
src/main/kotlin/org/phoenixframework/Push.kt	84% <0%> (+2%)	25% <0%> (+1%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a11852b...04f1e7d. Read the comment docs.